fix(explorer): vertically center the Explorer toggle under mobile view (#1847)

Felix Nie

2025-03-16 a72b1a422485d4f2258e58c1f76f933cb24cf455

 quartz/styles/callouts.scss

@@ -10,7 +10,7 @@
  transition: max-height 0.3s ease;
  box-sizing: border-box;

  & > *:nth-child(2) {
  & > .callout-content > :first-child {
    margin-top: 0;
  }